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If impulse I varies with time t as I(kgm/s)=20t^2-40t. The change in momentum is minimum at which time

If impulse I varies with time t as I(kgm/s)=20t^2-40t. The change in momentum is minimum at which time

Grade:12th pass

1 Answers

Vikas TU
14149 Points
7 years ago
Impulse = change in momentum
Therefore,
dI/dt = 40t – 40 = 0
at t = 1 sec. the Impulse would be minimum.
Hence,
I = 20 – 40 = -20  Kgm/s.

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